Hi,
I have read your job carefully and I am interested in your job post for a web developer to complete your Project and it can be done as per your expectation. Any kind of modification can be done here. I have experience in this field you are looking for. I have done several OPENCART based online store having lots of modification in pages like Product, category, Cart page etc. So it would not be a difficult thing here. Even custom design can also be implemented in OPENCART store. I am developing extensions as well for OPENCART.
Thank you for investing your valuable time, I would be glad to assist you if I can get a reply from your end. Looking forward to your response
Thanks & Regards,
Sumanta